常見(jiàn)例句Reptiles evolved into three distinct groups: the cotylosaurs, the pelycosaurs, and the therapsids. 爬蟲(chóng)類演化為三個(gè)明顯不同的類別：杯龍類、盤龍類和獸孔類。cotylosaurn. [古生]杯龍( 一種原始爬行動(dòng)物) 返回 cotylosaurs